<?php
    // +----------------------------------------------------------------------
    // | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
    // +----------------------------------------------------------------------
    // | Copyright (c) 2006-2016 http://thinkphp.cn All rights reserved.
    // +----------------------------------------------------------------------
    // | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
    // +----------------------------------------------------------------------
    // | Author: liu21st <liu21st@gmail.com>
    // +----------------------------------------------------------------------
    namespace think\log\driver;

    use think\App;

    /**
     * 本地化调试输出到文件
     */
    class File {
        protected $config = [
            'time_format' => ' c ',
            'file_size'   => 2097152,
            'path'        => LOG_PATH,
            'apart_level' => [],
        ];
        protected $writed = [];

        // 实例化并传入参数
        public function __construct($config = []) {
            if (is_array($config)) {
                $this->config = array_merge($this->config, $config);
            }
        }

        /**
         * 日志写入接口
         * @access public
         * @param array $log 日志信息
         * @return bool
         */
        public function save(array $log = []) {
            $cli         = IS_CLI ? '_cli' : '';
            $destination = $this->config['path'] . date('Ym') . DS . date('d') . $cli . '.log';
            $path        = dirname($destination);
            !is_dir($path) && mkdir($path, 0755, true);
            $info = '';
            foreach ($log as $type => $val) {
                $level = '';
                foreach ($val as $msg) {
                    if (!is_string($msg)) {
                        $msg = var_export($msg, true);
                    }
                    $level .= '[ ' . $type . ' ] ' . $msg . "\r\n";
                }
                if (in_array($type, $this->config['apart_level'])) {
                    // 独立记录的日志级别
                    $filename = $path . DS . date('d') . '_' . $type . $cli . '.log';
                    $this->write($level, $filename, true);
                } else {
                    $info .= $level;
                }
            }
            if ($info) {
                return $this->write($info, $destination);
            }
            return true;
        }

        protected function write($message, $destination, $apart = false) {
            //检测日志文件大小，超过配置大小则备份日志文件重新生成
            if (is_file($destination) && floor($this->config['file_size']) <= filesize($destination)) {
                rename($destination, dirname($destination) . DS . time() . '-' . basename($destination));
                $this->writed[$destination] = false;
            }
            if (empty($this->writed[$destination]) && !IS_CLI) {
                if (App::$debug && !$apart) {
                    // 获取基本信息
                    if (isset($_SERVER['HTTP_HOST'])) {
                        $current_uri = $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
                    } else {
                        $current_uri = "cmd:" . implode(' ', $_SERVER['argv']);
                    }
                    $runtime    = round(microtime(true) - THINK_START_TIME, 10);
                    $reqs       = $runtime > 0 ? number_format(1 / $runtime, 2) : '∞';
                    $time_str   = ' [运行时间：' . number_format($runtime, 6) . 's][吞吐率：' . $reqs . 'req/s]';
                    $memory_use = number_format((memory_get_usage() - THINK_START_MEM) / 1024, 2);
                    $memory_str = ' [内存消耗：' . $memory_use . 'kb]';
                    $file_load  = ' [文件加载：' . count(get_included_files()) . ']';
                    $message    = '[ info ] ' . $current_uri . $time_str . $memory_str . $file_load . "\r\n" . $message;
                }
                $now                        = date($this->config['time_format']);
                $server                     = isset($_SERVER['SERVER_ADDR']) ? $_SERVER['SERVER_ADDR'] : '0.0.0.0';
                $remote                     = isset($_SERVER['REMOTE_ADDR']) ? $_SERVER['REMOTE_ADDR'] : '0.0.0.0';
                $method                     = isset($_SERVER['REQUEST_METHOD']) ? $_SERVER['REQUEST_METHOD'] : 'CLI';
                $uri                        = isset($_SERVER['REQUEST_URI']) ? $_SERVER['REQUEST_URI'] : '';
                $message                    = "---------------------------------------------------------------\r\n[{$now}] {$server} {$remote} {$method} {$uri}\r\n" . $message;
                $this->writed[$destination] = true;
            }
            if (IS_CLI) {
                $now     = date($this->config['time_format']);
                $message = "[{$now}]" . $message;
            }
            return error_log($message, 3, $destination);
        }
    }
